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Get Started Using BEopt

Download BEopt and EnergyPlus or DOE-2. Once they are installed, start BEopt and select either New Construction or Retrofit mode.
Geometry screen. Click and drag to draw your building floor plan.
Options screen. Select building ...

September 01, 1997

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September 01, 1997

In the past two decades, many energy analysis software packages have appeared on the market. Most of these have been time-consuming, complicated to use, or unable to handle a sufficient number of variables. [continue reading]

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July 01, 1995

Since the original version of PRISMÃ(PRInceton Scorekeeping Method, developed and copyrighted by Princeton University) was released in 1986, it has been used by utilities, private companies, government agencies, and universities to estimate energy savings from conservation programs. [continue reading]

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May 01, 1995

In 1978, the U.S. Department of Energy (DOE) published Project Retro-Tech to provide all states a manual technique for identifying low-income weatherization measures that would produce the most energy savings per dollar spent. [continue reading]

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May 01, 1994

Weatherization agencies have complained for years about a U.S. Department of Energy requirement that 40% of Low-Income Weatherization Assistance Program (WAP) funds be spent on "materials" rather than labor. [continue reading]